Indices · 2026-10-01
Six numbers to watch.
Daily market indices for LLM usage: reasoning share, free traffic, open weights, geography, concentration, and blended price. Formulas in the methodology.
464 models catalogued upstream on OpenRouter as of 2026-10-02.
Reasoning share
91.54%
-2.15pp · 30d
Free-traffic share
4.76%
-6.96pp · 30d
HHI (top-10)
855
+302.68 pts · 30d
Median $ / M paid
$0.395
$-0.51 · 30d
Reasoning Share Index
Share of tracked tokens going to reasoning-flagged models.
Free-Traffic Index
Share of tokens routed through :free variants.
HHI top-10 concentration
Herfindahl-Hirschman on the daily top-10 model shares. Higher = more concentrated.
Median blended price paid
Usage-weighted median of (0.3·prompt + 0.7·completion) $ / M tokens across all tracked models.
Peak tracked volume: 25T tokens/day.
Open weights vs closed
Share of tracked tokens routed to open-weights models.
China vs Western labs
Share of tracked tokens routed to Chinese labs versus US & European labs.
Top-10 HHI
Top-10 model share HHI stood at 855 on 2026-10-01 — higher = more concentrated. Source: Tidelines indices.